Door-check



(Nol Model.)

W. A. GAY. DOOR' CHECK.

540,019. Patented Ma 28, 1895. l F'IlEzl. y

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UNTTED STATES PATENT` Grinch.

WILLIAM A. GAY, OF NEVARK, NEW JERSEY.

Doon-CHECK.

SPECIFICATION formingpart of Letters Patent No. 540,019, dated May 28,1895.

Application led May 24, 1894- Serial No. 512,324. (No model.)

To a/ZZ whom it may concern..- parallel with each other. The ends of therod Be it known that I, VILLIAM A. GAY, a citiare bent outward atright-angles to the body zen of the United States, residing in Newark,to form the journals gx. When the bail is Essex county, New Jersey, haveinvented cermounted in its bearings the space c, between 55 tain new anduseful Improvements in Doorits branches, will be wide enough to snuglyChecks, of which the following is a specifiembrace the neck bx, of thebolt but allow it cation. to play freely between the branches, but it Myinvention relates to the class of doorwill not be wide enough to allowthe head, checks designed to replace the ordinary chain b', thereof topass between the branches. 6o 1o which permits a door to stand ajar butwill The space between the cheeks e, will suffice, not allow itto beopened wide enough for a however, to allow the head of the bolt to playperson to enter; and the object of the invenbetween them. tion is toprovide a simple and inexpensive On the innerface of each cheek e, isformed device which, when not in use, will present no an inturnedflange, e", (see Fig. 4) which has a 65 projecting parts on either thedoor 0r door-casrecess or notch, e', cut in it, and when the bail ing totear the clothing or injure the person. is turned from either of itsfolded positions to In the accompanying drawings I have illusitsperpendicular position the branches theretrated an embodiment of myinvention. of will spring outwardly into said notches;

Figure 1 is a view on a small scale, showthat is, the inclined sides ofthe recesses, as 7o 2o ing the check mounted, the door being reprethebail is turned from its folded positions,

sented as closed and the check set to allow tend to throw it into theperpendicular posithe door to open to a limited extent. The tion and tohold it there, as being the posiother figures are on a larger scale.yFig. 2 is tion where there is the least tension on the a face view ofthe check set as in Fig. 1. Fig. expanding spring g. 75 z5 3 is asimilar view to Fig..2, but showing the When the check is not -in use,the bail g, check set for ordinary use of the door. Fig. 4 may, if thereis room, be turned -back over isasectional view on line 4 4in Fig.2andillusthe door-casing to a nearly horizontal positrating in dottedlines also the operation of tion, as represented in Fig. 3, and the boltbe the check. Part of the bolt-casing is broken drawn into its casing.The door is then free 8o 3o away in Figs. 3 and 4. to be opened andclosed at will. If there is X indicates a part of a door and Ya partofnot room to turn back the bail fully, owing the door-casing.Sufficient of each of these to the'door opening, being set close to awall parts is shown to illustrate the manner of or partition, or becauseof the casing having mounting the elements of the check thereon. aheavily molded trim, the bail need only be A 3 5 On the door is mounteda bolt-casing, a, conturned far enough to be out of the way. taining asliding bolt, b. The bolt is oper- Fig. 2 shows the position of theparts when ated by a knob, c, the shank of which plays the check is'inuse and the door closed. The in a slot in the casing. The bolt has aneck, bail is folded' down over the door to the in bx, formed, as hereinshown, by cutting reclined position seen in Fig. 4, and the bolt 9o 4ocesses in its opposite sides. When the casprotruded. Now if the door beopened the ing a is secured to the door and the bolt is neck of the boltwill engage the bail and the drawn in, the latter may be completelyhoused outward swing of the door will raise the bail riliw'tlgegasingand no part of the bolt or casto the position seen in dotted lines inFig. 4.

ing will pRject beyond the edge of the door. Thelength of the baillimits the opening move- 45 On the door-casing Y, is mounted a basementof the door and the bolt and bail ca-nnot plate, d, on which are twochecks, e; in which be disengaged except by rst closing the door. areholes that form bearings for journals, gx, In order to hold the doorajar and prevent on an elongated bail, g. This bail is formed it frombeing closed by the wind, or, if on of a piece of stout spring-wire bent at g', to shipboard, by the rolling and pitching of the -roo 5o forman expanding spring at this point and so ship, I provide the bail withnotches or shoulas to bring its branches into position nearly ders, h,which engage the head of the bolt when the lparts are in the positionseen in dotted lines in Fig. 4s. It will be noted that the tendency ofthe bail, under the influence of its expanding spring and the bevelednotches, e', tends to assume a perpendicular position when at an angleof about fifty to sixty degrees, and this tendency causes the bail tokeep lthe shoulders h in engagement with the head of the bolt. Thisdevice is well adapted for the stateroom doors of vessels, and whereverit may be found desirable to hold the door slightly ajar, but lockedagainst entry from the outside.

By protruding the bolt only so far as to bring its head under theshoulders, at the journals gx, of the bail, the door will be bolted andcannot be opened, as the space between the cheeks c, under the journalsof the bail, serves as a bolt-socket.

The bail g, will,as stated, be made of round wire, by preference, butother forms of spring metal will serve. The base-plate d may be in twosections, each bearing a cheek e, for convenience in mounting thejournals of the bail therein, but this is not material t0 my invention.

My stop device may be applied to the sashes of a window in lieu of theordinary sash-lock to prevent the window from being opened or to permitit to be opened only to a limited extent.

Having thus describedv my invention, I

. claim* 1. In a door-check, the combination with a b0lt-casing and asliding bolt therein provided with a head and neck as described, of thebase-plate d, having flanged cheeks to provide bearings for the bail,ofthe said bail having its pivotal axis arranged at right-angles to theaxis of the bolt and a distance from the base-plate greater than thethickness of the bolt-head, whereby the space between the saidbase-plate and shoulders serves as a socket to receive the head of thebolt, substantially as set forth.

2. In a door-check, the combination with a bolt-casing and the slidingbolt having a head and neck, ot' the base-plate CZ, having flanged andrecessed cheeks e, the bail g, mounted in said cheeks and provided withan expanding spring, and shoulders h, the neck of the bolt being adaptedto t snugly between the branches of the bail and the head of the bolt toengage the shoulders h on the bail, substantially as and for thepurposes set forth. v

In Witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

WILLIAM A. GAY.

Witnesses:

HENRY CONNETT, JAs. KING DUFFY.

